<template>
  <!--本文件由FirstUI授权予广东即见即得数字科技有限公司（会员ID：2 5 4 4，营业执照号：9 1 44 0 605  MAC 0   Y  3    J7 0Y）专用，请尊重知识产权，勿私下传播，违者追究法律责任。-->
  <view
    class="fui-checkbox__input"
    :class="{
      'fui-checkbox__disabled': disabled,
      'fui-checkbox__color': !getColor && val && !isCheckMark,
    }"
    :style="{
      backgroundColor: getBackgroundColor(val, isCheckMark),
      borderColor: getBorderColor(val, isCheckMark),
      zoom: isNvue ? 1 : scaleRatio,
      transform: `scale(${isNvue ? scaleRatio : 1})`,
      borderRadius: borderRadius,
    }"
    @tap.stop="checkboxChange"
  >
    <view
      class="fui-check__mark"
      :style="{
        borderBottomColor: checkMarkColor,
        borderRightColor: checkMarkColor,
      }"
      v-if="val"
    ></view>
    <checkbox
      class="fui-checkbox__hidden"
      style="opacity: 0; position: absolute"
      :color="getColor"
      :disabled="disabled"
      :value="value"
      :checked="val"
    >
    </checkbox>
  </view>
</template>

<script>
export default {
  name: "fui-checkbox",
  emits: ["change"],
  // #ifdef MP-WEIXIN
  options: {
    virtualHost: true,
  },
  // #endif
  props: {
    value: {
      type: String,
      default: "",
    },
    checked: {
      type: Boolean,
      default: false,
    },
    disabled: {
      type: Boolean,
      default: false,
    },
    //checkbox选中背景颜色
    color: {
      type: String,
      default: "",
    },
    //checkbox未选中时边框颜色
    borderColor: {
      type: String,
      default: "#ccc",
    },
    // #ifdef APP-NVUE
    borderRadius: {
      type: String,
      default: "40px",
    },
    // #endif
    // #ifndef APP-NVUE
    borderRadius: {
      type: String,
      default: "50%",
    },
    // #endif
    //是否只展示对号，无边框背景
    isCheckMark: {
      type: Boolean,
      default: false,
    },
    //对号颜色
    checkMarkColor: {
      type: String,
      default: "#fff",
    },
    scaleRatio: {
      type: [Number, String],
      default: 1,
    },
  },
  created() {
    this.val = this.checked;
    this.group = this.getParent();
    if (this.group) {
      this.group.childrens.push(this);
      if (this.group.value && this.group.value.length > 0) {
        this.val = this.group.value.includes(this.value);
      }
      // #ifdef VUE3
      if (this.group.modelValue && this.group.modelValue.length > 0) {
        this.val = this.group.modelValue.includes(this.value);
      }
      // #endif
    }
    this.label = this.getParent("fui-label");
    if (this.label) {
      this.label.childrens.push(this);
    }
  },
  watch: {
    checked(newVal) {
      this.val = newVal;
    },
    val(newVal) {
      if (this.group) {
        this.group.changeValue(this.val, this);
      }
    },
  },
  computed: {
    getColor() {
      let color = this.color;
      // #ifdef APP-NVUE
      if (!color || color === true) {
        const app = uni && uni.$fui && uni.$fui.color;
        color = (app && app.primary) || "#465CFF";
      }
      // #endif
      return color;
    },
  },
  data() {
    let isNvue = false;
    // #ifdef APP-NVUE
    isNvue = true;
    // #endif
    return {
      val: false,
      isNvue: isNvue,
    };
  },
  methods: {
    getBackgroundColor(val, isCheckMark) {
      let color = val ? this.getColor : "#fff";
      if (isCheckMark) {
        color = "transparent";
      }
      return color;
    },
    getBorderColor(val, isCheckMark) {
      let color = val ? this.getColor : this.borderColor;
      if (isCheckMark) {
        color = "transparent";
      }
      return color;
    },
    checkboxChange(e) {
      if (this.disabled) return;
      this.val = !this.val;
      this.$emit("change", {
        checked: this.val,
        value: this.value,
      });
    },
    getParent(name = "fui-checkbox-group") {
      let parent = this.$parent;
      let parentName = parent.$options.name;
      while (parentName !== name) {
        parent = parent.$parent;
        if (!parent) return false;
        parentName = parent.$options.name;
      }
      return parent;
    },
    labelClick() {
      this.checkboxChange();
    },
  },
};
</script>

<style scoped lang="scss">
.fui-checkbox__input {
  font-size: 0;
  color: rgba(0, 0, 0, 0);
  width: 40rpx;
  height: 40rpx;
  border-width: 1px;
  border-style: solid;
  /* #ifdef APP-NVUE */
  border-radius: 40rpx;
  /* #endif */
  /* #ifndef APP-NVUE */
  display: inline-flex;
  box-sizing: border-box;
  border-radius: 50%;
  vertical-align: top;
  flex-shrink: 0;
  /* #endif */
  flex-direction: row;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

/* #ifndef APP-NVUE */
.fui-checkbox__color {
  background: $subject-color !important;
  border-color: $subject-color !important;
}

/* #endif */

.fui-check__mark {
  width: 20rpx;
  height: 40rpx;
  border-bottom-style: solid;
  border-bottom-width: 3px;
  border-bottom-color: #ffffff;
  border-right-style: solid;
  border-right-width: 3px;
  border-right-color: #ffffff;
  /* #ifndef APP-NVUE */
  box-sizing: border-box;
  transform: rotate(45deg) scale(0.5) translateZ(0);
  /* #endif */
  /* #ifdef APP-NVUE */
  transform: rotate(45deg) scale(0.5);
  /* #endif */
  transform-origin: 54% 48%;
}

.fui-checkbox__hidden {
  /* #ifndef APP-NVUE */
  width: 100%;
  height: 100%;
  border: 0 none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  pointer-events: none;
  /* #endif */
  /* #ifdef APP-NVUE */
  width: 100wx;
  height: 100wx;
  border-width: 0;
  /* #endif */
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
}

.fui-checkbox__disabled {
  opacity: 0.6;
}
</style>
